Apparently, an advertising agency hired by Samsung is trying to buy people to post questions about the company on StackOverflow. This is what Delyan Kratunov was asked to do (he declined):

All we need you to do is talk about the SSAC (Samsung Smart App Challenge) and get the word out. How? We were thinking about 4 questions on Stackoverflow over the span of a month..... as well as replies to posts made by other members. Don't worry about finding the questions to reply to because we will send you links.